This document provides an overview of ethics and effective communication in public speaking. It discusses establishing an ethical foundation before speaking, the communication process involving senders, messages, receivers and feedback, and barriers to communication like attitudes, social factors, education and culture. It also describes intrapersonal communication as self-assessment and interpersonal communication between people. Rhetoric is defined as the study of communication. The document concludes by discussing Aristotle's three appeals of ethos, logos and pathos, and suggests speakers consider whether their message is appropriate, how listeners would feel, if it provides new information at the right level.